The off year elections have been positive for the Dems: Looking ahead to 2024, Democrats concede some cause for concern — including President Joe Biden’s anemic approval rating and early polls forecasting a repeat race against former President Donald Trump in which Biden either ties or trails, due in part to a notable chunk of undecided voters and apprehension over Biden’s age and acuity, which he has repeatedly dismissed. But Democrats also say that based on 2023 so far, they see plenty of reason for optimism about their chances with voters. An analysis from FiveThirtyEight found that in 38 special elections held so far this year, Democrats have outperformed the partisan lean — or the relative liberal or conservative history — of the areas where the races were held by an average of 10%, both romping in parts of the country that typically support the party while cutting down on GOP margins in red cities and counties, too. For instance, the Democratic candidate in a Wisconsin State Assembly special election last month lost by just 7 points in an area where Republicans have a 22-point edge and where Trump beat Biden by almost 17 points in 2020. In a New Hampshire special election in May for a state House seat, the Democrat won by 43 points, far beyond the party’s estimated 23-point edge in the district. The data from FiveThirtyEight does not include regularly scheduled off-year elections, including the Wisconsin Supreme Court race earlier this year in which the liberal candidate, now-Justice Janet Protasiewicz, won by 11…